The incident occurred during the baptism ceremony for a baby and the woman who died - according to what police commissioner Joao Blase, who is handling the case, told reporters - was the child’s mother.

Blase confirmed that some witnesses had said the man who fired the shots was the woman’s ex-husband and he showed up during the ceremony, fired several shots inside the church and fled in the car he arrived in.

The priest, Daniel Richter, who was conducting the ceremony at the San Francisco de Asis church, told reporters that everything happened quite suddenly and that the people attending the baptism ran in panic when the shooting started.

The four wounded people were taken to a nearby hospital and, medical sources say, at least one of them is in serious condition.

CBN radio said that the man in serious condition was shot in the head and is the current husband of the woman who was killed.